I recently tried to replace the la chip on a burnt v9. i bought the la RII chip. I took the old la chip out soldered the new chip in i thought sweet that was a breeze put it all back together booted up and the tray wouldnt even open up. i checked my soldering and it is bob on the only thing i thought could have caused this problem is i was a bit rough taking the old chip out i didnt heat the legs or **** all just prized the legs away from the board . so bollocks to trying to resserect this ps2 im just going to put it down as a experience.
i suppose one good thing is ive learnt alot and improved alot on the way.